Tender-feed-water heater



Jan. 2o, 1931.

C. A. SCHELLENS TENDER FEED WATER HEATER Filed Aug.

lvl, 1928 2 Sheets-Sheet 1 lan. 20, 1931.

c. A. SCHELLENS TENDER FEED WATER HEATER Filed Aug. 11, 1928 2 Sheets-Sheet 2 NM, g M

INVENTOR ATTORNEYS Patented .lan. 20, 1931 `NT-0FFICE if .CHRISTOPHER A- soHELIgENs, oF MAEBLEHEAD, MAssAcnusETTs, vAssIsNoE 'roc-s.,

ENGINEERING COMPANY, 0E ENGLEWOOD, NEW JERSEY, fe coEPoEnTIoN or DELA- 'WARE TENDER-EEEn-WATEEEEATER i Application fue@ August: 11, 1,92@sgmiNqj2esr4a This invention relates to improvements in feedr water heaters and particularly'to'heaty ers located in-locomotive tenders for heat' ing the feed water of locomotives by directA contact' with a heating medium.

4One of theprimary objects of my invention is the provision of a tender feed' water heater of the character described in which pollution of the water in the tender and diicultiesincident thereto are prevented.

Another object of my invention is the provision of a feed water heater ofthe character. described in which gases and the like, as well as oil andi the like, are'efl'ectively removed or permitted to escape from the tender, thus greatly increasing the efficiency of theV heater itselfV and ensuring effective the entire feed water system. 1

More specifically stated, it is an object of my invention to provide a device of the char` acter described in which oil is collected and flushed out of the tender every time that t-he tender is filled with water;

A more specific object is the pro-vision of` a novel combined vent, overflow means and` collector for oil and the water heaters.

My invention also contemplates certain detail improvements and combination of parts like for tender feedin heaters of the class described as will here-A inafter appear.

VHow the foregoing, together with such other objects and advantagesas may hereinafter appear, or are incident to my invention, are realized, is illustrated in preferred .form in the accompanying drawings, where- Fig. 1 is a fragmentary longitudinal section through. a portion of a locomotive tender showing my invention applied thereto,

certain of theparts appearing inL elevation. Fig. 2 is a fragmentary plansection taken on the line 2 2 of Fig. 1.` r

Fig. 3 is an enlarged sectional view taken on the line 3-3 of Fig. 1, and

Fig. It is a view similar to Fig. 1 `illustrating a modification of my invention.

Referring now more particularly to 1 to 3 inclusive, I have illustrated my iin-- provedfeed water heater vA in a preferred performance of i location, namely, at the front portion of a locomotive tenderB and in association with the water withdrawal mechanismV C' ofV theV tender which `may be of anysuitable construct-ion. i A

`The vWaterheater A comprisesgm general, aheater casing 5, a nozzle devicezfor heat'- ing the water by direct contactwith 4a heat. f l

two sides and the bottom of the casing'` beingformed in this instance by the tender. v`ThisV casing; is preferably of small volumetric content as compared to the volumetric contentk ofthe tender and provides a chamber for separating' a portion of the water in the tender from 'the remainder thereof, there being, however, constant communication between.` said4 portionsof .water through an opening 8- in the lower portion of the casing. The casing is located over the water withdrawal mechanism C and may be said to'be a hood for such mechanism. f Y,

The` nozzle device 6 in this instance isin thefform of a detachable memberorcasting adapted to be secured to the casing 5, as by means-.of bolts 9, over1 the opening 8v above referred to. This member is provided with an elongatednozzlechamber 10 having an inlet opening 11` for the introductionpf a heating medium thereto,tpreferably exhaust` steam, and alsofhaving a pluralityof nozzle openings 12 the lower curved portion thereof through which thev steam is discharged. Plugs 13 are providedat the end'sof said chamber for cleaning outj orother purposes. Extending downwardly from the ends of said chamber are` a pair of legs lel'andextendingforwardly from the chamber to thei casing fisa wall 15, from whichitwill 'be metal construction and rectangular in form,y

seen that this nozzle deviceprovides a passageway through which water must pass to enter the-interior-of the lheater casingl 5, for withdrawal through the water withdrawal orifice of the tender. In passingfthrough this passageway. thefwater is brought .intoy direct contact with -the steam discharging sate from a primary feed water heater locatedV on the locomotive, although it is to be understood that ifthe tender heater is not associated with such a primary heater, as would be the case where the tender heater is used alone as the locomotive feed water heater,"Il

may employ exhaust steam from the locomof 'tive cylinders or from other steam voperated appliances on the locomotive ory both. The steam line 16may be provided with suitable check and drain valves as desired.

Reverting now to the heater casing` 5, it will be seen that the overflow pipe 7 hereinb'efore mentioned extends upwardly fromthe-top of the casing and terminates a short distance l below the top plate 17 of the tender, the

point of termination being substantially at the highesty level yof the water in the tank.V

Associated with the overflow pipe and located adjacent is termination is the means 7 a above referred to for'receiving the overfiow of the pipe. rIhis means is preferably in the form of a casing providing a closed chamber preventing entrance of water thereinto directly from the tender, the casing, in this instance, comprising a metallic body portion 18 and a readily detachable cover plate 19.v Leading "fromthe bottom of the body portion 18 1s a drain pipe'20 discharging yto the outside of the tender. This closed lchamber is vented as by means of thevent pipe 21 provided in the cover plate 19. By providing the vent pipe 21 siphoning of the tender through the drain pipe 2O is also prevented.

The advantages of the arrangement just described will be understood from the following. Y

When heating water by direct contact with a heating medium in the manner above set forth, there are present air and non-condensible gases, as well as oil and the like. Unless provision is made to the contrary the effectiveness not only of the heater iteslf, but of the entire feed water system would be impairedv and even be destroyed because of the inability of the pump to function.

' I have found that by providingthe'heater device'with a vent as disclosed-in my cepending application, Serial No. 119,630, filed J une 30, 1926, thedifriculties arising from the pres-A ence of air and non-condensibles are overcome. In constructions made in accordanceV with said application it has been found that oil carried into the heater would overflow from kthe vent' pipe and either lodge on the'walls of the t'endertank or pollute the water in the tank. vIn my present invention this objectionable feature is overcome by permitting the oil accumulating in the vent pipe'to escape to the exterior of the tender. In the preferred form of my' invention the oil overflows into the collector means 7 a in whichk vided simple and effective means for carrysAY ing oft' oil and the like from the heater de-v vice without siphoning H water, for the oil, being lighter than the water in the overflow` pipe, rises and eventually the head of oil reaches the top ofthe pipe and overflows, particularly every time the tender is filled. v Y While I have described the collector means 7 a as providing a chamber closed against I alsocontemplate merely having the vvent pipe extendto the exterior of the tender or other arrangements. such as providing col, lector means in the form of a cupassociated with the overflow pipe, in which case the Lipper edge of the cup would extend abovethe highest level of water in the tank so as to prevent the oil from overflowing. from the cupv and polluting the water in the'tender.

Referring now to the modification of `my invention shown in Fig. 1, it will be noted that the heater casing land nozzle device are.v of modifiedy construction. In this form the heater casing a and the nozzle device 6a are intergral. The nozzle chamber a is formed in the casing and extends only part way around the casing and is spaced somcwhat above the floor of the tender. The remaining portion of the casing extends tothe floor of the tender so that water-'can only enter the casing through the space below the chambered .portion 10a. A plurality of nozzle openings 12a are provided in the rounded bottom of the chamber 10a, through which openings the heating medium discharges directly into the water passing to the interior of the casing 5a through the passageway provided by spacing the chamber 10a above the fioor of theY tender.

Vhile I have shown the heating devices located lover the waterwithdrawal orifice of the tender, I may, if desired, locate the heatery device elsewhere in the tender and lead the water heated thereby to the water withdrawal orifice as by means of a pipe. In Fig. 4 I have illustrated a covered opening 22 available for such purpose. On removing the coverfrcm this opening a pipe may be attached to the casing Vfor leading the water to the withentrance of water directly from the'tender, K

drawal orice. In other respects theV arrangement. of Fig. 4 is similar to that shown in Fig. l. v Y- l. A locomotive feed Water heater for tenders comprising, in combination, a heating device in the tender for heating Water by direct contact with a heating medium, and means for carrying off oil andthe like from said device including a riser pipe having an overflow chamber closedagainst discharge into the tender, and a drain for said chamber discharging tothe outside of the tender.

2.l A locomotive feed Water heater for tenders comprising, in-combination, a heating device in the tender for heating Water by direct contact with a heating medium, an overfiow pipe for said heating device, a closed casing receiving the yoveriioiv of said pipe, a vent for said casing, and a drain for said casing discharging to the outside of the tender, said overflow pipe, closed casing, and drain cooperating When the tender is being filled to constitute means for flushing oil and the like to the outside of the tender.

'3. The combination With a heaterV device for heating locomotive feed Water, said device being located Within a locomotive tender, of a. combined vent and overflow i means for said heater device, said means including a pipe and a casing closed against discharge into the tender located at the vdis` charge end of said pipe to receive the overflow thereof.

4. The combination with a heater device for heating locomotive feed Water, said device being located Within a` locomotive tender, of ka combined vent and overflow means for said heater device, said means including means for receiving the overflow thereof, said last mentioned means having a drain discharging to the outside of thetender and said first and second mentioned means cooperating When the tender is being filled to constitute means for flushing oil and the like tothe outside of the tender.

5. The combination with a heater device for heating locomotive feed Water, said device being located i VWit-hin a locomotive tender and having means `for heating the .vater by direct contactwith a heating medium, of an overflow pipe therefor, and a g. vented chamber locatedto receive the overfiow of the overflow pipe, said chamber having a drain pipe leading to the outside of the tender, and said overflow pipe, vented chamber and drain pipe cooperating to constitute means for fiushing oil and the like to the outside of thevtender when .the tender is being filled.

6. A locomotive feed Water heater for tendershaving a Water Withdrawal orifice,

comprising, in combination, a casing Within the tender of smallvohlmetric content'relative the volumetriocontent of the tender, i

tender yvvithdravval `orifice that the orifice is in communication With the interior of the casing .and said casing `having constant com` munication With` the Water in the'tender,"

means for admitting a heating medium into the vWater as it enters the casing, an overflow pipe for said casing, a closed chamber into which the overflow pipe discharges, a vent for said chamber, and a drain for said chamber. Y

said casing being soplocated relative to the Y.

'7. A locomotive `feed Water heater for tenders having a Water Withdrawal orifice, comprising, in combination, a heating device Within the tender located adjacent the floor thereof, and in association with Vthe Water Y Withdrawalorifice, said device including a casing the interior of Which is in constant communication with the Water in the tender, means for. heating Water' as it enters the casing by direct contact With a heating medium, a. second casing Within the tender located adjacent the top of the tender, said second casing being closed aga-inst entrance of Water thereinto directly ,from the tender,

an overflow pipe for the first mentioned;

Ofi

heating device,said overflovvpipeterminating V substantially at the highest level of thev Water in the tender, and means extending above said Water level for receiving the overfiow from the overflow pipe.

In testimony Vwhereof I have hereunto signed my name.v

CHRISTOPHER A. SCHELLENS. 

